The Best Wood for Pen Turning and Knife Scales
Dense, fine-grained hardwood blanks that drill straight, turn without tear-out and polish to a shine off the tool — sized for pen kits and full-tang knife handles.
Pen turners and knife makers want the same three things from a blank: fine, even grain that will not tear out at the last cut, enough density to take a burnished or buffed finish without filler, and dimensions that leave real material after the blank is trued up.
This guide covers the species we mill for turning and handle work — Swiss pear, castello boxwood, black and coloured hornbeam — with blank sizes in millimetres and inches, drilling and stabilising notes, and finishing routines that suit each one.
Blank sizes for pens and knife handles
Our pen blanks are milled at 19 × 19 × 130 mm (roughly 3/4 × 3/4 × 5 1/8 in), which covers slimline, fountain and most twist kits with enough length for two barrels plus a parting allowance. Knife scale blanks are 40 × 30 × 140 mm (about 1 9/16 × 1 3/16 × 5 1/2 in), which resaws cleanly into a matched pair of scales for a full-tang handle with material left for shaping.
All blanks are cut from the same kiln-dried stock we use for precision milling, squared on all four faces so they chuck and clamp true. There is no wax-dipped end grain to trim back and no case hardening to fight.
| Blank | Metric | Imperial | Typical use |
|---|---|---|---|
| Pen blank | 19 × 19 × 130 mm | 3/4 × 3/4 × 5 1/8 in | Slimline, fountain, twist and bolt-action kits |
| Knife scale blank | 40 × 30 × 140 mm | 1 9/16 × 1 3/16 × 5 1/2 in | Full-tang scales, resawn as a matched pair |
| Larger turning stock | Cut to order | Cut to order | Bottle stoppers, seam rippers, handles, finials |
Anything outside these sizes can be milled to your dimensions through the custom quote calculator.
Pen blanks 19×19×130 mm — mixed packs and single species · Knife scale blanks 40×30×140 mm · Custom sizes — quote calculator
Species compared for turning and handle work
Density is what separates a blank that burnishes to a glass finish from one that needs grain filler. All four species below sit in the range where a skew or a sharp gouge leaves a surface that barely needs abrasive.
| Species | Density | Grain | Turning | Best for |
|---|---|---|---|---|
| Swiss pear | ~700 kg/m³ | Very fine, uniform pink-brown | Excellent — cuts like butter, no tear-out | Fountain pens, warm-toned scales, food-safe handles |
| Castello boxwood | ~800 kg/m³ | Extremely fine, pale cream | Excellent — takes crisp beads and fine detail | Detailed kits, contrast inlay, small finials |
| Black hornbeam | ~750 kg/m³ | Fine, near-black dyed through | Very good — polishes to a deep sheen | Ebony-look scales and pen barrels without CITES paperwork |
| Coloured hornbeam | ~750 kg/m³ | Fine, dyed brown / red / green / yellow | Very good | Accent segments, bold contrast handles |
Drilling and gluing pen blanks
Blow-out at the exit face is the most common way a good blank is wasted. Drill on a lathe with the blank held in a pen-blank chuck, or on a drill press with the blank clamped square in a vice and a backing block underneath. Peck-drill in short steps, clearing the flutes every few millimetres — the fine dust from these dense species packs and heats.
Because pear, boxwood and hornbeam are all close-grained, brass tubes bond best when the tube is scuffed with 120 grit and the bore is cleaned of dust. Medium CA with a spray accelerator or a slow epoxy both work; epoxy gives more open time if you are gluing several barrels at once.
- Peck-drill in 5 mm steps and clear the flutes each time.
- Use a backing block — these species are dense enough to chip on exit.
- Scuff and degrease the brass tube before gluing.
- Square the barrel ends on a mill or barrel trimmer, not by eye.
Preparing knife scales
Resaw the 40 × 30 × 140 mm blank down the 30 mm dimension to give two scales of roughly 14 mm before flattening — enough for a comfortable handle profile with material to spare. Cut both scales from the same blank so the grain and colour match across the handle.
None of these species is oily, so epoxy bonds to bare wood without solvent wiping. Rough the glue faces with 80 grit, drill pin and Corby holes through both scales while they are still flat and clamped together, then shape after cure.
Stabilising is optional. Pear and boxwood at 700–800 kg/m³ are already dimensionally calm indoors, but resin stabilising is worth it for a working knife that will see water. Coloured hornbeam is dyed through, so light sanding after stabilising will not expose pale wood.
Finishing: what actually shines
The fine, tight pore structure of these species means you can skip grain filler entirely. Sand progressively to 600 grit, then either friction-polish on the lathe or apply a thin oil finish and buff.
For pens, a CA finish over sanded pear or boxwood gives the glass look most kit buyers expect. For handles that will be gripped, an oil-and-wax finish leaves a warmer surface that can be refreshed rather than repaired.
| Finish | Best on | Notes |
|---|---|---|
| CA (thin, built in coats) | Pen barrels | Highest gloss, most durable on a pen; sand to 12000 micromesh |
| Friction polish | Pens, small turnings | Fastest, warm sheen, less water resistant |
| Hardwax oil | Knife scales, handles | Repairable, good grip, food-safe once cured |
| Buffed carnauba | Boxwood, hornbeam | Brings out depth without building a film |
Ordering and custom blanks
Mixed packs let you try several species before committing to a batch. If you need a size we do not list — longer blanks for seam rippers and bottle stoppers, thicker stock for hidden-tang handles, or a run of matched scales in one species — send the dimensions through the custom quote calculator and we mill them from the same stock.
Everything is milled to order in our Tallinn workshop and ships worldwide.
Frequently asked questions
- What size are your pen blanks?
- 19 × 19 × 130 mm, which is about 3/4 × 3/4 × 5 1/8 inches — long enough for two barrels of most twist and fountain pen kits plus a parting allowance.
- What size are your knife scale blanks?
- 40 × 30 × 140 mm (about 1 9/16 × 1 3/16 × 5 1/2 in). Resawing down the 30 mm dimension gives a matched pair of scales for a full-tang handle.
- Do the blanks need stabilising?
- Not for indoor use. Swiss pear, castello boxwood and hornbeam are dense and dimensionally calm. Resin stabilising is still worth it for a working knife that will get wet.
- Is black hornbeam a good ebony substitute for knife scales?
- Yes. It is dyed through to a near-black, works and polishes like a dense fruitwood, and carries no CITES paperwork, unlike genuine ebony.
- Can I order a custom blank size?
- Yes. Send your dimensions through the custom quote calculator and we mill the blanks from the same kiln-dried stock, in any of the species we carry.